hi, srry bout this ,but i dont know how to install or use Ntune. it came with my mobo "an evga nforce 590 sLi Mainboard. i also have a "evga nvidia 8500GT with 512mb ram. im running 4 hard drives. A400gb sata - a160gb sata in spanning mode, and a 320gb win Vista -and a 250gb win XP. i have a dvd-rw drive. my prossesor is an AMD Athlon 64 DuelCore, 2.31GHz. any help would be nice thanks again.